I think this is a pretty simple question, but does this configuration look ok? I'm limited to where I can vent, which is pretty much the wall between the shower and the toilet. Thank you. Long time lurker (learner), first time post.
OK if you are under the IPC, the dry vented WC can wet vent the shower.
Not allowed if you are under the UPC, the WC has to be the last fixture on the wet vent. So for that, you'd need to send the trap arm towards the wall, take the vent off the 2" shower trap arm vertically, and within 60" from the shower trap, then have the vented shower drain join the WC drain within 72" from the closet flange.